Horse racing regulators in the United Kingdom have announced stringent new measures to combat the growing threat of equine influenza, with restrictions tightening across all racecourses starting May 20, 2026. The move comes as the number of confirmed equine flu cases in Great Britain has risen to 60, prompting warnings from experts about the 'sustained national circulation' of the virus.
Racecourse Access Limited to Licensed Yards
Under the new regulations, raceday entry to racecourse grounds will be exclusively permitted for horses originating from licensed training yards. This precautionary measure is designed to minimize the risk of transmission by preventing the mixing of the thoroughbred racing herd with horses and ponies from unlicensed premises. This decision follows extensive consultation with independent infectious disease experts and aims to safeguard the health of the racing population. James Given, the British Horseracing Authority's (BHA) director of equine regulation, safety and welfare, acknowledged that the restrictions would be "disappointing for many people," but stressed their essential nature. "Levels of equine flu are higher than at any time in recent history and it's essential that we take all necessary steps to protect the thoroughbred herd," Given stated.
Cancellation of Equine Events and Activities
The implementation of these restrictions will result in the abandonment of all scheduled Hunter Chase races from May 20 onwards. This includes the Hunter Chase evening at Stratford Racecourse on May 29. Furthermore, other equine activities planned at British tracks will also be cancelled. These include Retraining of Racehorses (ROR) parades and family fun day attractions such as petting farms and pony rides. The BHA is reportedly working with affected racecourses to explore options for rescheduling or replacing the lost Hunter Chase contests. Discussions are also underway with Ascot Racecourse to replicate biosecurity measures for the Royal procession.
The equine influenza cases have been reported across England, Scotland, and Wales, with the Equine Infectious Disease Surveillance (EIDS) reports indicating 60 confirmed cases as of May 14, 2026, with details on an additional 16 pending. The widespread nature of these cases across 34 separate counties highlights the significant circulation of the virus. The Pony Club has also issued a call for vigilance among its members, particularly those planning to travel for events or competitions.
The BHA has emphasized that these measures will remain in place until there is confidence that equine influenza levels have sufficiently decreased in the British horse population, thereby reducing the heightened risk to the thoroughbred racing herd. The authority has also published updated guidance for trainers and vets on biosecurity measures, reinforcing the importance of vaccination protocols, which require booster vaccinations at intervals of no more than six months.
Looking ahead, the continuity of racing remains a priority, and the BHA continues to engage with stakeholders to ensure the safest possible environment for all involved. The ongoing vigilance and cooperation of the racing community are considered vital in managing this health challenge.